HEAT RECOVERY DEVICE AND NON-CONTACT AIR-HEATING TYPE HEAT-NOT-BURN HEATING DEVICE WITH THE HEAT RECOVERY DEVICE

Abstract

A heat recovery device includes an alumina ceramic tube body, and the alumina ceramic tube body defines a cavity suitable for placing a heating component; a first group of honeycomb porous channels is arranged inside the side wall of the alumina ceramic tube body and the first group of honeycomb porous channels divides the alumina ceramic tube body into an outer wall and an inner wall. The side wall of the alumina ceramic tube body adopts a unique honeycomb porous structure; when the heating component placed in the defined cavity heats a smoking product, the heat that does not act on the smoking product will transfer heat to the alumina ceramic tube body; due to the high thermal conductivity of high-purity alumina ceramics used in the alumina ceramic tube body, the alumina ceramic tube body will be quickly heated, and then the air in the porous channels will be heated.

Claims

1. A heat recovery device, comprising an alumina ceramic tube body, wherein the alumina ceramic tube body defines a cavity for placing a heating component; a first group of honeycomb porous channels is arranged inside a side wall of the alumina ceramic tube body, and the first group of honeycomb porous channels divides the alumina ceramic tube body into an outer wall and an inner wall.

2. The heat recovery device of claim 1, wherein the cavity is confined in a center of the alumina ceramic tube body.

3. The heat recovery device of claim 1, wherein the alumina ceramic tube body has a density not less than 3.86 g/cm.sup.3.

4. The heat recovery device of claim 1, wherein the alumina ceramic tube body is a hollow cylinder with a circular cross section or a polygonal cross section.

5. The heat recovery device of claim 1, wherein the first group of honeycomb porous channels are uniformly arranged polygonal holes.

6. The heat recovery device of claim 5, wherein a wall thickness of both the outer wall and the inner wall is greater than a wall thickness of the first group of honeycomb porous channels.

7. The heat recovery device of claim 5, wherein a wall thickness of the first group of honeycomb porous channels is within 0.1 mm-0.5 mm.

8. The heat recovery device of claim 1, wherein the first group of honeycomb porous channels are uniformly arranged circular holes, wherein a pore diameter of the uniformly arranged circular holes is within 0.1-2 mm, and a minimum distance between every two adjacent circular holes of the uniformly arranged circular holes is 0.1-0.5 mm.

9. A non-contact air-heating type heat-not-burn heating device, comprising: the heating component, and the heat recovery device of claim 1, wherein the heat recovery device defines the cavity for placing the heating component and smoking products.

10. The non-contact air-heating type heat-not-burn heating device of claim 9, wherein the heating component comprises a heating element, wherein a second group of honeycomb porous channels are arranged in the heating element, and a heating circuit is arranged on the heating element to heat air passing through the second group of honeycomb porous channels.

11. The non-contact air-heating type heat-not-burn heating device of claim 10, wherein the heating component further comprises a preheating tube and a deflector, wherein the heating element is arranged below the preheating tube, the deflector is arranged between the preheating tube and the heating element, and a plurality of diversion holes are arranged on the deflector.

12. The non-contact air-heating type heat-not-burn heating device of claim 9, further comprising a sealing sleeve arranged in the inner wall of the heat recovery device, the heating component is arranged in the sealing sleeve, and the heating component is connected with the heat recovery device through the sealing sleeve.

13. The non-contact air-heating type heat-not-burn heating device of claim 9, wherein the heating component and the heat recovery device are both made of high-purity alumina ceramics, with a density of not less than 3.86 g/cm.sup.3.

14. The non-contact air-heating type heat-not-burn heating device of claim 10, wherein the first group of honeycomb porous channels and the second group of honeycomb porous channels are both uniformly arranged polygonal holes, with a pore diameter ranging from 0.1 mm to 2 mm, and a minimum distance between every two adjacent holes of the uniformly arranged polygonal holes within 0.1 mm-0.5 mm.

15. The non-contact air-heating type heat-not-burn heating device of claim 9, wherein in the heat recovery device, the cavity is confined in a center of the alumina ceramic tube body.

16. The non-contact air-heating type heat-not-burn heating device of claim 9, wherein the alumina ceramic tube body of the heat recovery device has a density not less than 3.86 g/cm.sup.3.

17. The non-contact air-heating type heat-not-burn heating device of claim 9, wherein the alumina ceramic tube body of the heat recovery device is a hollow cylinder with a circular cross section or a polygonal cross section.

18. The non-contact air-heating type heat-not-burn heating device of claim 9, wherein the first group of honeycomb porous channels are uniformly arranged polygonal holes.

19. The non-contact air-heating type heat-not-burn heating device of claim 18, wherein in the heat recovery device, a wall thickness of both the outer wall and the inner wall is greater than a wall thickness of the first group of honeycomb porous channels.

20. The non-contact air-heating type heat-not-burn heating device of claim 18, wherein a wall thickness of the first group of honeycomb porous channels is within 0.1 mm-0.5 mm.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0036] FIG. 1 is a structural diagram of a heat recovery device according to an embodiment of the present invention.

[0037] FIG. 2 is a structural diagram of a heat recovery device according to another embodiment of the present invention.

[0038] FIG. 3 is a structural diagram of a non-contact air-heating type heat-not-burn heating device according to an embodiment of the present invention.

[0039] FIG. 4 is a structural diagram of a heating element according to an embodiment of the present invention.

[0040] FIG. 5 is a structural diagram of a deflector according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] To make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, in combination with the attached drawings given in the embodiments of the present invention, the technical scheme described in embodiments of the present invention are described explicitly and completely below. Apparently, the embodiments described only represent a part but not all of the embodiments of the present invention. Based on the embodiments quoted in the detailed description of the present invention, all other embodiments obtained by ordinary technicians skilled in the art without creative work should be included in the scope of protection of the present invention. Therefore, the following detailed descriptions of the embodiments of the present invention provided in the attached drawings are not intended to limit the scope of the present invention to be protected, but only represent the selected embodiments of the present invention. Based on the embodiments quoted in the detailed description of the present invention, all other embodiments obtained by ordinary technicians skilled in the art without creative work should be included in the scope of protection of the present invention.

[0042] In the description of the present invention, it should be understood that the terms “above”, “below”, “inner”, “outer”, “front end”, “rear end”, “one end”, “the other end”, etc. refer to the direction or position based on the attached drawings. The terms are provided only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred therein must have a specific direction, must be constructed or operated in a specific direction, they can not be construed as a limitation on the present invention. The terms “first” and “second” are for illustrative purpose only, which may not be construed as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise expressly specified and defined, the terms “install”, “arrange”, “connect”, etc. should be understood in a broad sense. For example, “connect” may be fixed connection or detachable connection or integral connection; it may be mechanical connection or electrical connection; it may be also direct connection or indirection connection through a medium, or it may be internal communication of two components. For those ordinary technicians skilled in the art, the specific meanings of the above terms quoted in the present invention can be understood according to specific situations.

[0044] With reference to the attached Figures, the heat recovery device and the non-contact air-heating type heat-not-burn heating device with the heat recovery device proposed by the embodiments of the present invention are illustrated in detailed below.

[0045] As shown in FIG. 1 and FIG. 2, a heat recovery device proposed by an embodiment of the present invention comprises an alumina ceramic tube body 1, wherein the alumina ceramic tube body 1 defines a cavity 5 suitable for placing a heating component 6; a first honeycomb porous channel 2 is arranged inside the side wall of the alumina ceramic tube body 1 and the first group of honeycomb porous channels 2 divides the alumina ceramic tube body 1 into an outer wall 3 and an inner wall 4.

[0046] Optionally, the center of the alumina ceramic tube body 1 defines a cavity 5, which is suitable for placing a heating component 6, for example, a ceramic heating element.

[0047] Optionally, according to an embodiment, the density of the alumina ceramic tube body is not less than 3.86 g/.sup.3.

[0048] Optionally, the alumina ceramic tube body is a hollow cylinder with a circular or polygonal cross section.

[0049] According to an embodiment of the present invention, the first group of honeycomb porous channels 2 comprises uniformly arranged polygonal holes. In other embodiments of the present invention, the first group of honeycomb porous channels 2 may comprise uniformly arranged circular holes.

[0050] Further, a wall thickness of the outer wall 3 and the inner wall 4 is greater than that of the first group of honeycomb porous channels 2.

[0051] Specifically, the wall thickness of the first group of honeycomb porous channels may be within 0.1 mm-0.5 mm.

[0052] According to another embodiment of the present invention, when the first group of honeycomb porous channels 2 comprises uniformly arranged circular holes, the pore diameter of the holes is within 0.1 mm-2 mm, and the minimum distance between two adjacent circular holes is 0.1 mm-0.5 mm.

[0053] Specifically, as shown in FIGS. 1-2, the heat recovery device proposed by an embodiment of the present invention comprises an alumina ceramic tube body 1, wherein a heating component 6 is arranged in the center of the alumina ceramic tube body 1, a first honeycomb porous channel 2 is arranged in the side wall of alumina ceramic tube body 1; the first group of honeycomb porous channels 2 divides the alumina ceramic tube body 1 into an outer wall 3 and an inner wall 4; a heating component 6 is arranged in the cavity 5 that is located in the center of the alumina ceramic tube body 1; and the density of the alumina ceramic tube body is 3.86 g/cm.sup.3; the alumina ceramic tube body 1 is a hollow cylinder with a circular cross section; the first group of honeycomb porous channels 2 comprises uniformly arranged square holes; the wall thickness of the outer wall 3 and the inner wall 4 is greater than that of the first group of honeycomb porous channels 2; besides, the alumina ceramic tube body 1 is connected to the heating component 6 through a low thermal conductivity tube 7 arranged in the inner wall 4 through the low thermal conductivity tube 7; and a material of the low thermal conductivity tube 7 includes but is not limited to mullite, cordierite and others.

[0054] According to an embodiment of the present invention, the purity of the alumina ceramic tube body 1 is more than 99%, so that the ceramic surface has a high density, which can effectively prevent adsorption of smoke and dust particles, thus to exert the effect of preventing odd smell.

[0055] The side wall of the alumina ceramic tube body 1 adopts a unique honeycomb porous structure; when the heating component 6 in the center bakes a smoking product, the heat that does not act on the smoking product will transfer heat to the alumina ceramic tube body 1; due to the high thermal conductivity of high-purity alumina ceramics used in the alumina ceramic tube body 1, the alumina ceramic tube body 1 will be quickly heated, and then the air in the porous channel will be heated. During smoking, the heated air flows upward from the heating component 6, and the normal temperature air flows into the honeycomb porous channel 2 of the alumina ceramic tube body 1 to further take away the heat in the alumina ceramic tube body 1, thereby achieving heat recovery and saving energy. The low thermal conductivity tube 7 is used to fix the heating component 6, and and exerts a certain heat preservation effect on the heat in the center, which may prevent the quick loss of heat to the surroundings, and reduce energy consumption. Alumina ceramics have the advantages of stable structure, strong reliability and long service life.

[0056] As shown in FIG. 2 and FIG. 3, the non-contact air-heating type heat-not-burn heating device proposed by an embodiment of the present invention comprises a heating component 6 and the heat recovery device 8 described in the above embodiment.

[0057] Wherein, the thermal energy recovery device 8 defines a cavity 5, which is suitable for placing the heating component 6 and smoking products (not shown).

[0058] Optionally, in an embodiment of the present invention as shown in FIG. 3, the heating component 6 comprises a heating element 13. As shown in FIG. 4, a second honeycomb porous channel 133 is arranged in the heating element 13, and a heating circuit 131 is arranged on the heating element 13 to heat the air passing through the second group of honeycomb porous channels 133.

[0059] As shown in FIG. 3 and FIG. 5, the heating component 6 further comprises a preheating tube 11 and a deflector 12, wherein the heating element 13 is arranged below the preheating tube 11, and the deflector 12 is arranged between the preheating tube 11 and the heating element 13, and a plurality of diversion holes 121 are arranged on the deflector 12.

[0060] In an embodiment of the present invention, when a smoker desires to smoke, he/she may put a cartridge into the preheating tube 11 to prevent the cartridge from falling; after powering on, the heating circuit 131 starts to heat, because the effective ingredients such as nicotine can only be heated to generate the smoke to smoke only when the cartridge is baked at 280° C-320° C., so it is necessary to preheat the device, and preheating is deemed as completed when the temperature of the preheating tube 11 and the deflector 12 reaches 200° C., the preheating is completed. Since the preheating is completed, at the time of a first and second puffs during the first heating, the cartridge only needs to be heated from 200° C. to 320° C., which is faster than rising from the room temperature, and can better guarantee the smoke volume produced by the first and second puffs. To speed up heating, a honeycomb porous channel 133 is arranged in the heating element 13 and the porous channels are uniformly arranged square holes or other polygonal holes, with the pore diameter ranging from 0.1 mm to 2 mm, and the minimum distance between two adjacent holes within 0.1 mm-0.5 mm, and the expanded area is large, the air-heating efficiency is very high, and the heated air flows from the center of the honeycomb without contacting the heating circuit 131, so it will not cause pollution. As the preheating tube 11, the heating element 13 and the deflector 12 are all made of high-purity alumina ceramics featuring good electrical insulation, high strength, and good thermal conductivity, so the ceramic heating element 13 will not leak when being heated, and the preheating tube 11 and the deflector 12 will be heated up because of the good thermal conductivity of high-purity alumina ceramics, the user can smoke the cartridge soon; during smoking the airflow is heated by the ceramic heating element 13 to reach 320° C., then further homogenized and diverted through the diversion holes 121 on the deflector 12 and finally flows into the cartridge more evenly to heat the tobacco, so as to increase the smoke volume, improve the smoking taste, and provide good user experience. During smoking, some fluid contaminants emitted from the cartridge may inevitably remain in the device. As the high-purity alumina ceramics feature high compactness and almost have no pores in microstructure, so penetration of contaminants in fluid is impossible, and no pollution and odd smell will be left on the surface.

[0061] According to an embodiment of the present invention as shown in FIG. 3, the non-contact air-heating type heat-not-burn heating device further comprises a sealing sleeve 9, wherein the sealing sleeve 9 is arranged in the inner wall of the heat recovery device 8, the heating component 6 is arranged in the sealing sleeve 9, and the heating component 6 is connected to the heat recovery device 8 through the sealing sleeve 9.

[0062] In an embodiment of the present invention, the heating component 6 and the heat recovery device 8 are both made of high-purity alumina ceramics, with a density being not less than 3.86 g/cm.sup.3.

[0063] Specifically, in one embodiment, the first group of honeycomb porous channels 2 and the second group of honeycomb porous channels 133 are both uniformly arranged polygonal holes, with a pore diameter ranging from 0.1 mm to 2 mm, and the minimum distance between two adjacent holes within 0.1 mm-0.5 mm.

[0064] According to an embodiment of the present invention, as shown in FIGS. 1-5, a non-contact air-heating type heat-not-burn heating device comprises a heating component 6, a sealing sleeve 9, and a heat recovery device 8, wherein a first honeycomb porous channel 2 is arranged in the side wall of the heat recovery device 8, and the first group of honeycomb porous channels 2 divides the heat recovery device 8 into an outer wall 3 and an inner wall 4; the sealing sleeve 9 is arranged in the inner wall 4 of the heat recovery device 8, a heating component 6 is arranged in the sealing sleeve 9, and the heating component 6 is connected to the heat recovery device 8 through the sealing sleeve 9; a heating element 13 is arranged in the heating component 6; a heating circuit 131 is provided on the heating element 13, wires 132 are arranged at the end of the heating circuit 131, and a second honeycomb porous channel 133 is arranged in the heating element 13.

[0065] Further, the heating component 6 is provided with a preheating tube 11, a flow deflector 12 and a heating element 13 sequentially from top to bottom, wherein the flow deflector 12 is provided with a plurality of deflector holes 121.

[0066] Further, the heating component 6 and the heat recovery device 8 are both made of high-purity alumina ceramics, with a density being not less than 3.86 g/cm.sup.3.

[0067] Further, the first group of honeycomb porous channels 2 and the second group of honeycomb porous channels 133 are uniformly arranged square holes or other polygonal holes, with a pore diameter ranging from 0.1 mm to 2 mm, and the minimum distance between two adjacent holes within 0.1 mm-0.5 mm

[0068] Further, printing materials of the heating circuit 131 comprise but not limited to silver, tungsten and MoMn.

[0069] Further, the wire 132 material includes but is not limited to silver, copper, and nickel.

[0070] In the embodiment, as shown in FIG. 3, a first honeycomb porous channel 2 is arranged in the side wall of the heat recovery device 8, the first group of honeycomb porous channels 2 divides the heat recovery device 8 into an outer wall 3 and an inner wall 4; a sealing sleeve 9 is arranged in the inner wall 4 of the heat recovery device 8, a heating component 6 is arranged in the sealing sleeve 9, and the heating component 6 is connected to the heat recovery device 8 through the sealing sleeve 9; the heating component 6 comprises a preheating tube 11, a deflector 12, and a heating element 13 in order from top to bottom; as shown in FIG. 4, a heating circuit 131 is provided on the heating element 13, wires 132 are arranged at the end of the heating circuit 131, and a second honeycomb porous channel 133 is arranged in the heating element 13. When a smoker desires to smoke, he/she may put a cartridge into the preheating tube 11 to prevent the cartridge from falling; after powering on, the heating circuit 131 starts to heat, because the effective ingredients such as nicotine can only be heated to generate the smoke to smoke only when the cartridge is baked at 280° C-320° C., so it is necessary to preheat the device, and preheating is deemed as completed when the temperature of the preheating tube 11 and the deflector 12 reaches 200° C., the preheating is completed. Since the preheating is completed, at the time of a first and second puffs during the first heating, the cartridge only needs to be heated from 200° C. to 320° C., which is faster than rising from the room temperature, and can better guarantee the smoke volume produced by the first and second puffs. To speed up heating, a second honeycomb porous channel 133 is arranged in the heating element 13 and the porous channels are uniformly arranged square holes or other polygonal holes, with the pore diameter ranging from 0.1 mm to 2 mm, and the minimum distance between two adjacent holes within 0.1 mm-0.5 mm, and the expanded area is large, the air-heating efficiency is very high, and the heated air flows from the center of the honeycomb without contacting the heating circuit 131, so it will not cause pollution. Furthermore, the heating component 6 and the heat recovery device 8 are both made of high-purity alumina ceramics featuring good electrical insulation, high strength, and good thermal conductivity, so the heating element 13 will not leak when being heated, and the preheating tube 11 and the deflector 12 will be heated up because of the good thermal conductivity of high-purity alumina ceramics, the user can smoke the cartridge soon; during smoking the airflow is heated by the heating element 13 to reach 320° C., then further homogenized and diverted through the diversion holes 121 on the deflector 12 and finally flows into the cartridge more evenly to heat the tobacco, so as to increase the cartridge smoke volume. In the heating process, as a sealing sleeve 9 is arranged in the inner wall 4 of the heat recovery device 8, and a heating component 6 is arranged in the sealing sleeve 9, all the heat that is generated but not not act on the cartridge will transfer heat to a first honeycomb porous channel 2, and the porous channels are uniformly arranged square holes or other polygonal holes, with the pore diameter ranging from 0.1 mm to 2 mm, and the minimum distance between two adjacent holes within 0.1 mm-0.5 mm, and the expanded area is large, therefore, the air-heating efficiency is very high, which is useful to provide heat preservation, and save energy by reducing heating time. During smoking, the heated air flows towards the second group of honeycomb porous channels 133, and flows into the heat recovery device 8 to further take away the heat in the first group of honeycomb porous channels 2, thereby achieving heat recovery. Wherein, the sealing sleeve 9 serves as a seal between the heat recovery device 8 and the heating component 6, which ensures that the heated air will not flow to other places. During smoking, some fluid contaminants emitted from the cartridge may inevitably remain in the device. As the high-purity alumina ceramics feature high density (not less than 3.86 g/cm.sup.3) and almost have no pores in microstructure, so penetration of contaminants in smoke is impossible, and no pollution and odd smell will be left on the surface.

[0071] Although the embodiments of the present invention have been shown and described above, it can be understood that the embodiments are exemplary but should not be construed as a limitation on the present invention, the ordinary technician skilled in the art may make changes, modifications, substitutions and variations of the embodiments within the scope of the present invention.